Answer
The eccrine glands produce sweat, and the apocrine glands are responsible for secretion containing fatty acids and proteins as well.
Work Step by Step
There are two types of sweat glands: eccrine and apocrine. The eccrine glands produce sweat and play a role in the body's heat regulation. Apocrine glands are largely confined to the axillary and genital areas of the body. They are usually larger than eccrine glands, and their ducts empty into hair follicles. Their secretion contains fatty acids and proteins, as well as all the substances present in eccrine sweat (therefore it may have a milky or yellowish color). The secretion is odorless, but when bacteria that live on the skin use its proteins and fats as a source of nutrients for their growth, it can take on a musky, sometimes unpleasant odor. Their precise function in humans is not yet known.
